Tour the Midwest with the Road Trip Picture of the Day (pictures)

For seven weeks, CNET's Daniel Terdiman challenged readers to identify photographs taken from his travels. Here's a look at all 49 locations.

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Gateway Arch

ST. LOUIS -- For seven weeks, CNET readers were tasked with identifying photos in the Road Trip Picture of the Day Challenge. Each week, CNET reporter Daniel Terdiman gave away a GoPro camera to a winner selected at random from among anyone who submitted a correct answer that week. And at the end of the seven weeks, Terdiman selected two grand prize winners who were tied with the most correct answers during the challenge -- with 47 out of 49 each. Each won a complete GoPro camera package.

Here are all 49 daily photos, and the answers, which came from Illinois, Indiana, Ohio, Michigan, Nebraska, Missouri, Iowa, and Wisconsin, as well as Germany, California, and New York. Thanks to everyone who participated in the challenge this year, and to everyone, please come back next year for the 2014 CNET Road Trip Picture of the Day Challenge. You could win some great prizes.

The answer to the August 11 challenge -- which 361 people got right -- was the Gateway Arch in St. Louis, Mo.

World's busiest control tower

The answer to the August 10 challenge -- which 115 people got right -- was the control tower at Wittman Regional Airport in Oshkosh, Wis., which during the annual EAA AirVenture fly-in air show becomes the world's busiest control tower.

Frank Gehry's 'New York'

The answer to the June 27 challenge -- which 187 people got right -- was "New York," an apartment building designed by Frank Gehry in Manhattan. It was formerly known as Beekman Tower, and is also known as 8 Spruce St.